/ Dictionary / Index P packthread: Meaning and Definition of Find definitions for: pack•thread Pronunciation: (pak'thred"), [key] — n. a strong thread or twine for sewing or tying up packages. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: packthread (Thesaurus) packsaddle packtrain Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language